National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

*** IMPORTANT ***  Week of June 16 - Website Data Outage - Due to a major computer upgrade the week of June 16, nearly all data on the CNRFC web site will not be updated. We anticipate the down time to be approximately 4 days. The latest deterministic hydrologic forecasts for official forecast points will continue to be available at the National Water Prediction Service during this time.
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MAACAMA CREEK - KELLOGG (RMKC1)
Latitude: 38.64º NLongitude: 122.76º WElevation: 200 Feet
Location: Sonoma County in CaliforniaBulletin Group: Russian NapaRiver Group: Russian Napa
Issuance Time: Jun 14 2025 at 7:33 AM PDTNext Issuance: Jun 15 2025 at 9:00 AM PDT
Action/Monitor: 13.5 FeetMinor Flood: 14.8 FeetModerate Flood: 19.5 FeetMajor Flood: 25.0 Feet

Please Note:
1) Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.

2) At extremely low river flows, the "Observed (Raw Data)" may show readings below the lower end of the available rating table, while the "Observed (Simulated)" will only show values at the bottom of the rating table, creating a potential discrepancy between the two readings.
Observed Data Credit
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Raw streamflow data is provided by the US Geological Survey (USGS).
View US Geological Survey (USGS) Data for this station location.

Verification - Historical Graphical RVF
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To view other verification locations, use our Historical Graphical River Forecast Interface.
Location Photographs
ESRI™ Locator Map
Flood Impacts
25.0 FeetKreck Road inundated at creek crossing with water possibly over bridge deck. Valley completely flooded in the vicinity of the stream gage.
19.5 FeetModerate Flooding. Water in Maacama Creek blocked by bridge deck support structure and may begin to backwater upstream of the bridge crossing. Adjacent vineyard pump house flooded including electrical utility service to pump house so localized voltage hazard may be present. NWS will issue a Flash Flood Warning, if not yet already issued.
14.76 FeetMinor Flooding. Vineyard on left bank (south) side downstream of Kreck Road crossing fully inundated. NWS will issue an Urban/Small Stream Advisory, if not yet already issued.
13.5 FeetMonitor Stage. Right bank bridge abutments (west side) submerged at Kreck Road bridge. NWS may issue a Flash Flood Watch, if not yet already issued.
Official 7 Day National Weather Service Forecast   (CAZ506)
Today: Partly cloudy. Highs in the upper 60s to lower 80s. Southwest winds 5 to 15 mph.

Tonight: Mostly clear in the evening then becoming partly cloudy. Lows in the mid 40s to lower 50s. Southwest winds 5 to 15 mph.

Sunday: Mostly cloudy in the morning then becoming sunny. Highs in the upper 60s to lower 80s. Southwest winds 5 to 10 mph.

Sunday Night: Mostly clear in the evening then becoming partly cloudy. Lows in the mid 40s to lower 50s. West winds 5 to 15 mph.

Monday: Mostly cloudy in the morning then becoming sunny. Highs in the upper 60s to lower 80s. West winds 5 to 10 mph increasing to 10 to 20 mph in the afternoon.

Monday Night: Clear. Lows near 50.

Tuesday through Wednesday Night: Mostly clear. Highs in the mid 70s to upper 80s. Lows in the 40s to upper 50s.

juneteenth: Sunny. Highs in the upper 60s to mid 80s.

Thursday Night: Clear. Lows in the upper 40s to mid 50s.

Friday: Sunny. Highs in the mid 60s to lower 80s.
Product Disclaimer

This river graphic is not intended to serve as a substitute for official flood watches, warnings, advisories, or statements issued by the NWS San Francisco Bay Area-Monterey Weather Forecast Office. Observations are preliminary and subject to change. River levels identified as "forecast" should be consistent with those contained in official NWS products. River levels identified as "guidance" have significant uncertainty due to future weather or reservoir regulation and are provided for planning purposes only.